How much does deck cleaning cost? [2026 UK price guide]

TL;DR — Deck Cleaning Cost At A Glance

• Deck cleaning costs £30 – £180+, depending mainly on the size and condition of your decking.
• Priced by area, it works out at around £5 per m², though many firms apply a minimum call-out of roughly £145 for a standalone visit.
• A small deck (up to 20m²) costs £30 – £50, a medium deck £60 – £90, and a large deck £90 – £180+ outside London.
• Most quotes cover pressure washing (jet washing) and clearing the debris — but staining or oiling is extra, at £350 – £800.
• Cost drivers are size, how dirty or slippery the deck is, the timber type, and whether you want it treated afterwards.
• Booking it with other pressure-washing jobs (patio, driveway) is the easiest way to beat the minimum charge.

Get a fixed price to have your decking professionally cleaned — check prices and book online or bundle it with your patio for better value.

How Much Does Deck Cleaning Cost In 2026?

Having decking professionally cleaned in the UK costs £30 – £180+, driven almost entirely by the size and condition of the deck. As a rate, it comes out at around £5 per m², but because sending a team out for a tiny deck isn't worthwhile, many pressure-washing firms set a minimum call-out of about £145 for a standalone job. A gardener adding a quick deck wash to a regular visit may charge from as little as £30 – £50 for a small area.

Deck cleaning is usually done by jet washing (pressure washing) — the same method used for patios and driveways — sometimes with a specialist deck cleaner or brush for stubborn algae. The biggest thing that moves the price is how neglected the deck is: a lightly dusty deck is quick, while one that's gone green and slippery over a wet winter needs more passes and more care to avoid gouging soft timber.

Here's what you can expect to pay across the UK:

Figures include VAT where applicable and reflect 2026 market rates. Standalone visits may be subject to a minimum charge of around £145 — get a fixed quote here.

Deck Cleaning Vs Cleaning And Restoring: What's The Difference In Cost?

The size table above is for cleaning only — jet washing the deck back to a fresh finish. Many people take the opportunity to restore and protect the timber at the same time, and that's where the price steps up. Sealing wood after cleaning is what keeps it from greening up again next winter.

Whether it's worth adding treatment depends on the timber and how exposed the deck is. Softwood decking that faces the weather benefits from oiling every year or two; a sheltered or composite deck needs far less. Treating straight after a clean, while the wood is fresh, gives the best and longest-lasting result — so bundling the two saves a second visit later.

What Affects The Cost Of Deck Cleaning?

Several factors decide where you land in the ranges above.

1. Size Of The Deck

The single biggest driver. Whether priced per m² or by size band, a larger deck simply takes longer to wash, so an extra-large deck can cost three to four times a small one.

2. Condition And How Dirty It Is

A deck cleaned regularly is quick. One that's built up algae, moss and black mould over a damp winter needs more passes, a stronger cleaner and careful low-pressure work — all of which add time. Heavily slippery decks are the dearest to bring back.

3. Timber Type And Delicacy

Soft timbers and older, weathered boards need a gentler touch to avoid furring or gouging the surface, which slows the job. Hardwood and composite decking are more forgiving and often quicker.

4. Access And Layout

An open, ground-level deck is easy. Raised decks, decks with lots of balustrade and spindles, or ones reached only through the house take longer to clean and protect. Water and power access on site helps too.

5. Whether You Add Treatment

Cleaning alone sits at the lower end. Adding sanding, staining or oiling (+£350 – £800) is the highest optional cost — but it's what actually protects the wood and slows down regrowth of algae.

What's Included — And What's Not

Always confirm whether treatment is included — "deck cleaning" and "deck restoration" are priced very differently.

Can I Do It Myself?

Cleaning a deck is realistic DIY if you own or hire a pressure washer. A domestic machine, a stiff brush and a bottle of deck cleaner will handle a lightly soiled deck in a morning, and it saves the labour cost.

The trade-offs are time, kit and technique. Too much pressure — or holding the lance too close — will splinter and gouge soft timber, and getting an even finish on a big or green deck is harder than it looks. Applying stain or oil well (even coats, no laps, dry weather) is also a bit of a skill. If your deck is large, badly weathered, or you want it treated to a lasting finish, a professional is faster and gives a more even result. For light upkeep between visits, DIY is fine.

How To Save Money On Deck Cleaning

• Clean regularly — an annual wash is quick and cheap; leaving it for years turns a £50 job into a restoration project.
• Bundle it — book the deck alongside your patio or driveway to get past the minimum call-out for one visit.
• Clear it yourself — move furniture, pots and the BBQ before the team arrives so paid time goes on cleaning.
• Treat at the same time — oiling straight after a clean avoids a second call-out and makes the finish last longer.
• Book off-peak — spring and early summer are busy; autumn slots can be easier to get.
• Get 2–3 quotes and check whether treatment and any minimum charge are included.

How To Hire A Good Deck-Cleaning Professional

Deck and patio cleaning is usually offered by gardeners and pressure-washing specialists. Confirm they're insured, ask for before-and-after photos or reviews, and get a written quote that states whether it's clean-only or clean-and-treat, plus any minimum charge. A good operator will use the right pressure for your timber and won't blast soft boards.

With Fantastic Services, you get vetted, insured professionals with the right equipment, transparent pricing and online booking — and it's easy to add your patio or driveway to the same visit.

Frequently Asked Questions

How Much Does Deck Cleaning Cost?

In 2026, deck cleaning costs £30 – £180+ depending on size and condition — roughly £5 per m². A small deck is £30 – £50, a medium deck £60 – £90, and a large deck £90 – £180+ outside London. Standalone visits may carry a minimum charge of around £145.

Why Is It Important To Clean Decking?

Beyond looks, cleaning removes algae, moss and mould that make decking dangerously slippery, especially in wet weather. Regular cleaning also stops grime and moisture breaking down the timber, so the deck lasts longer and needs replacing less often.

How Often Should You Clean Decking?

Once a year is a sensible minimum for most UK gardens — ideally in spring, to clear off winter algae, or in autumn before the wet sets in. Shaded, damp or north-facing decks may need it twice a year; sheltered or composite decks less often.

Can I Clean Decking Myself?

Yes — with a pressure washer, a brush and deck cleaner, you can handle a lightly soiled deck. Just keep the pressure moderate and the lance moving to avoid gouging soft timber. For large, heavily weathered decks, or if you want it stained or oiled to a lasting finish, a professional gives a faster, more even result.

How Much Does It Cost To Clean And Oil A Deck?

Cleaning plus staining or oiling adds £350 – £800 on top of the clean, depending on deck size and the product. Treating straight after cleaning, while the timber is fresh, gives the best protection and slows down algae coming back.

How Do You Look After Decking After A Professional Clean?

Let it dry fully, then apply a stain, oil or sealer to protect the timber (if not already done). Keep it swept clear of leaves and standing water, move planters occasionally so moisture doesn't build underneath, and give it a quick wash each year to keep on top of algae.

Where Can I Get A Quote For Deck Cleaning?

You can get a fixed price online from Fantastic Services — share your deck's size and condition, and whether you'd like it treated, to get a quote for a clean or a full clean-and-restore.